Yarn, cord, thread, etc., and method of manufacturing same



April 12, 1932. DOM ET AL 1,854,119

AND METHOD OF MANUFACTURING SAME YARN, CORD, THREAD, ETC

Filed Feb. 7, l

A :4 a b w avwembozs *v (0414 had! @Ucoz e1 heretofore, necessary oflong fibres.

Patented Apr. 12, 1932 UNITED STATES PATENT OFFICE DUDLEY A. DOM, OFWYOMING, AND

WILLIAM J.

MOELLER, OF MOUNT HEALTHY, OHIO,

ASSIGNORS TO THE PHILIP CAREY MANUFACTURING COMPANY, A CORPORATION OFOHIO Application filed February 7, 1927.

Our invention relates to improvements in yarn, cord, thread, etc. andmethods of manufacturing same.

By our invention we are enabled to produce a yarn, cord, thread, etc.having the necessary and desired strength that has heretofore only beenobtained by the use of the highest grade These fibres have been,heretofore, after the required sorting, carding and spinning, made intoyarns, cords, etc. for various uses including weaving. \Ve are enabledby our invention to avoid many of the steps in producing yarns, cords,threads, etc. of the required strength and size while utilizing acomparatively short and poor grade of fibres. \Ve have discovered thatin felting fibres, such as is commonly done in the preparation ormanufacture of paper and preferably While feltingthe same if we put inlongitudinal flexible reinforcing means into the felted mass, we can bytwisting such felted material of the required width, form a tile fabrictherefrom.

yarn, thread, cord, etc. which has relatively considerable strength andis suitable for weaving into fabrics and the production of otherproducts.

Our invention, while addressed to the production of yarns, thread, cord,etc. made from various suitable fibres, has been found particularlyadapted to the production of mineral fibre, yarns, threads and cordssuitable for weaving into fabrics, such as various asbestos fabrics,brake band linings, etc., using very short fibres such as heretoforehave not been considered suitable for the formation of yarns, cords,etc. to be used in textile fabrics, because of their length'being tooshort to enable the required carding and spinning to form same.

We will describe our invention as applied to the production of a mineralfibre yarn such as asbestos yarn and the production of a tex- We takethe ordinary used in the producasbestos fibres, commonly the pulp tomake tion of asbestos paper from the felted asbestos paper and whilethepaper we insert into the mass a extendingilongitudi- We have foundflexible reinforceis being formed reinforcement Serial No. 166,411.

ment can be inserted by using a comparatively fine open mesh linen orcotton fabric cut so that continuous threads of the fabric extendlongitudinally of the felted sheet. This results in the production of anasbestos paper or felted sheet having in it a longitudinal flexiblereinforcement. This sheet is then cut into strips of the required width,depending upon the size of the finished yarn or cord that is desired;the diameter of which is also affected by the thickness of the asbestosfelted sheet that has been prepared. These strips, consisting of anasbestos felted sheet having a longitudinal reinforcement, are thentwisted so as to form a yarn or cord by any suitable twisting apparatus,after which we preferably run them through rollers so as to compress theyarn. This finished yarn or cord is then ready for weaving or such useas may be desirable. For some purposes it may be desirable to have ametal core in the center of the yarn or cord, and where that isdesirable we insert during the twisting operation, or just before thetwisting operation, the metal core so that as the twisting operation isperformed the felted mass is twisted around the metal core.

In the drawings,Fig. 1 shows diagrammatically an apparatus carryingoutthe method referred to of producing the yarn, cord, thread, etc..andFig. 2 shows an enlarged view of the finished product having a metalcore which is not necessary for all purposes. Referring to the drawings,A are cylinders of a wet machine used in producing the felted paper. Bis a roll or cylinder from which is fed a sheet of open mesh or looselywoven linen or cotton fabric so that as the asbestos felted sheet A 1 isformed the reinforcement B 1 of open I mesh or loosely woven fabricpasses into and becomes a part of the felted sheet 1. C represents twoof the drying rollers for the felted sheet 1 of which there are, ofcourse, many, as is well known to anyone in the art of producingasbestos paper.

of asbestos paper passes between the. slitters DD where it is formedinto tabs or strips F of the required width. It then passes through anopening or mouth spout so arranged so as to hold the same flat afterwhich it is twisted The reinforced sheet by any suitable twistingapparatus (not shown While the strip is being twisted a wire may, ifdesired, be inserted. The finished yarn may be woven into fabric by 5suitable weaving apparatus (not shown). In Fig. 2 the yarn or cord 3 isshown having the longitudinal reinforcement B 1 which is imbedded in thefelted asbestos sheet A 1. In this figure is also shown the wire core Gof suitable wire, but we would have it understood that for many purposeswe do not use this core G but depend merely upon the reinforcement B 1to give the necessary strength to the product. lVhere a relatively thickor heavy yarn or cord is desired, we may take a relatively wide tape ofreinforced felted asbestos material and fold it longitudinally one ormore times upon itself and then twist the folded tape to form thedesired yarn or cord. While we have shown yarn or cord made by imbeddinga woven fabric into an asbestos felted sheet, if desired, yarns or cordscould be made by cementing to the surface of an asbestos felted sheet areinforcement or by holding in contact with an asbestos felted sheet, alongitudinal reinforcei ent and twisting it into the yarn or threyd.This last named method would not be as satisfactory but would serve forsome purposes. Claims:

1. The method of' manufacture of yarns, cords, etc. consisting in theformation of a felted paper-like strip having a woven reinforcementtherein and twisting said strip to form said yarn, cord, etc.

2. A yarn, cord, thread, etc. comprising a paper-like strip of feltedfibers, having a longitudinal woven reinforcement therein,

. twisted to the desired form. In testimony whereof, we have signed ournames to this specification.

WILLIAM J. MOELLER. DUDLEY A. DOM.

